PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-19:27:50
G01     46.2           22.3                9.1 +/-    0.92      18.9 +/-    0.92  0.090 / 0.260
G06     175.8          31.3               15.5 +/-    2.78      26.5 +/-    2.78  0.090 / 0.200
G11     43.8           11.2                8.8 +/-    1.65      24.0 +/-    1.65  0.190 / 0.270
G13     245.4          27.4               11.9 +/-    2.08      22.0 +/-    2.08  0.130 / 0.260
G15     279.7          14.5                9.5 +/-    1.32      23.9 +/-    1.32  0.030 / 0.030
G17     327.0          76.7               12.9 +/-    0.69      13.2 +/-    0.69  0.030 / 0.030
G19     254.5          62.1               11.8 +/-    0.58      13.2 +/-    0.58  0.040 / 0.070
G24     318.4          12.8                3.8 +/-   25.50       9.9 +/-   25.50  0.040 / 0.070
G28     60.3           50.7               11.6 +/-    0.97      14.6 +/-    0.97  0.250 / 0.560
G30     151.8          35.7               14.9 +/-    1.01      23.3 +/-    1.01  0.230 / 0.670